import ffmpeg from "fluent-ffmpeg";
import { Event, getCurrentEvent, loadEvents } from "setlist";

const commandBase = ffmpeg()
  .input("rtsp://stream.furality.online/live/club")
  .seekInput("0:01")
  .audioCodec("copy")
  .videoCodec("copy")
  .outputOption("-y");

async function runCommand(event: Event) {
  const eventEnd = new Date(event.end);
  const now = new Date();
  const secondsUntilEventEnd = Math.max(
    0,
    Math.floor((eventEnd.getTime() - now.getTime()) / 1000)
  );
  const command = commandBase.clone().duration(secondsUntilEventEnd);

  const filename = event.name.replace(/ /g, "_");

  console.log(`Saving ${secondsUntilEventEnd}s of 1440p to ${filename}.mkv`);
  console.log(process.cwd());
  command.save(`./output/${filename}.mkv`);
  await new Promise<void>((res) => {
    // command.on("start", console.log);
    command.on("error", (err) => {
      throw err;
    });
    command.on("end", (cmd) => {
      console.log(cmd);
      res();
    });
  });
  console.log("Command Done");
}

async function main() {
  while (true) {
    await loadEvents();
    // find next
    const event = getCurrentEvent();
    if (!event?.name) {
      console.error("No more sets!");
      process.exit(0);
    }
    await runCommand(event);

    // sleep 5s
    await new Promise((res) => setTimeout(res, 5000));
  }
}

main();